Railway-frog



(No Model.)

P. NOLAN.

l Y RAILWAY PROG. l No. 349,260. Patented sept. 14, 1886.

di D I 6 l l a 6 l rl a ,a e a l Md 6/ d UNITED STATES PATENT OFFICE.

PATRICK NOLAN, OF BIRMINGHAM, ALABAMA.

RAI LWAY-FROG.

SPECIFICATION forming part of Letters Patent No. 349,260, dated September 14, 1886.

Application filed February 23, 18H6. Serial No. 192,854. (No modela To all whomA it may concern.-

Beit known that I, PATRICK'NOLAN, a citi-- zen of the United States, residing at Birmingham, in the county of Jefferson and State of Alabama, (formerly of Chattanooga, Tennessee,) have invented certain new and useful Improvements in Railway-Frogs, of which the followingis a specification.

My invention relates to an improvement in railwayirogs; and it has for its object to provide, in connection with the rails and component parts of an ordinary railway-frog, a supporting-base or bed-plate composed of a single iiat sheet of metal of the same form as the outline of the frog, and having its side edges slit or cut into transversely up to the line of the outer edges or flanges ofthe wing-rails, and alternate parts thereof turned up and shaped to conform to and flt closely against the outer faces ofthe wing-rails beneath the heads th ereof, said upturned parts forming bracing-pillars to prevent lateral spreading ofthe frog, and are perforated to receive the customary through bind` ing-bolts; and the flat portions or wings of said bed-plate, being perforated, are adapted to lie upon the ties and receive the spikes for securing the frog in place.

In the accompanying drawings, Figure l. is a plan view of a railway-frog embodying my invention. Fig. 2 is a transverse section 011 line x a', Fig. l. Fig. 3 is a detail perspective y view of the supporting base-plate; and Fig. et is a detail perspective view of the preferred form of channel-iron or illing-plate I desire to use in the construction of my improved frog.

A A represent the customary wing-rails of a railway-frog, and B B the point-rails thereof.

O represents the base-plate, upon which the body of the frog is supported. This plate is composed of a single flat piece of `metal, whose outline should be the same (or nearly so) as that of the body of the frog-viz., of V shapebut with square ends and broader than the frog, and also of sufficient length to support the entire body of the frog.

c c represent vertical bracing-plates, preferably formed integral with said base-plate, and out of the metal composing it, by slitting the sides thereof inwardly up to the point Where the outer edges of the wing-rails shall afterward lie, and shaping them to fit snugly over the said Iianges and against the webs of said wing-rails beneath the heads thereof, all as clearly shown in the cross-section, Fig. 2. These upturned bracing plates or pillars c c are arranged and constructed alternately on said plate, as shown in Fig. 1, leaving the iiat portions c c at the fore and rear ends and middle thereof, which lie upon the ties and are suitably secured in position by spikes or otherwise. lt will be seen that plate O supports the entire body of the frog, and particularly so the point thereof, which heretofore has been so imperfectly and insufficiently supported as to soon give way and become battered down by the constant riding and sudden contact of the passing car-wheels, thereby causing many accidents and the necessity of numerous repairs.

D represents the channel-iron or filling-plate fitting between the Wing-rails A A, and having a V recess to receive the converging ends of the point-rails B B', and designed, as customary, to properly bind and brace the said rails in place. Fillingpiece D is made entire in. one piece, and is provided with beveled ends d d d, thus furnishing a firm and substantial inner filling for the frog-rails, and, being inclined at its ends, permits the flanges of the car-wheels to pass without sudden and damaging shock into or out of the frog when taking or leaving the siding.

E E are the bindingbolts passed transversely through perforations in the upturned braces c c of plate O, the wing and point rails, and the filling-piece D, as shown in Fig. l.

I claim- In a railway-frog, the combination, with the wing and point rails and component parts thereof, of a supportingbase or bed-plate composed of a single at sheet of metal of the same form as the outline of the frog, and having its side edges slit or cut into transversely up to the line of the outer edges or iianges of the wing-rails, and alternate parts thereof turned up and shaped to conform to and t closely against the outer faces of the wing-rails beneath the heads thereof, said upturned parts forming bracing pillars to prevent lateral spreading of the frog, and being perforated to receive the customary through binding-bolts, and the flat portions or wings c c of said bedplate, being perforated, are adapted to lie upon the ties and receive the spikes for securing the frog in place, substantially as herein set forth. In testimony of which invention I have hereunto set my hand.

Witnesses: PATRICK NOLAN.

J oHN E. JoNEs, FRANK L. MILLWAED.

IOC 

